diff --git a/src/sound/music_midi_timidity.cpp b/src/sound/music_midi_timidity.cpp
index c0efbf74e..dcaa934b9 100644
--- a/src/sound/music_midi_timidity.cpp
+++ b/src/sound/music_midi_timidity.cpp
@@ -650,6 +650,7 @@ void TimidityPPMIDIDevice::Stop ()
 			SetEvent(KillerEvent);
 			if (WaitForSingleObject(ChildProcess, 500) != WAIT_OBJECT_0)
 			{
+				ResetEvent(KillerEvent);
 				TerminateProcess(ChildProcess, 666);
 			}
 			CloseHandle(ChildProcess);